Comic Pinup 64 (Patreon)

'Master warned him if he kept working out like that, his muscles would grow too much and it'd interfere with his ninja skills.

Raph didn't care. He loved looking huge, towering over his brothers.

He'd work out for hours. His body rippled with muscles, covered profusely in his own sweat. Visible steam coming out of him.

Donny could smell the powerful musk from the hulking turtle from all the way back in his own room. A scent he couldn't resist.

He saw Raph drying some of his sweat with a heavily stained rag. It had probably been used countless times by the hulking turtle.

Raph left his room for a moment. Probably to get a drink. Donny couldn't help himself.

He was holding the sweat rag, drenched in Raph's sweat. Thick sweat drops still dripping from it.

He brought it close to his face. The scent was so strong it was enough to make him cum right then and there. Donny's face covered in musky sweat. What he'd do to be able to keep that dirty sweat rag for himself...'

A little bit of extra lore for this pic :3
I'm on a HUGE tmnt mood atm